In a cross between a black and a white guinea pig, all members of the F, generation are...

In a cross between a black and a white guinea pig, all members of the F, generation are black. The F2 generation is made up of approximately 3/4 black and 1/4 white guinea pigs.

(a) Diagram this cross, showing the genotypes and phenotypes.

(b) What will the offspring be like if two F2 white guinea pigs are mated?

(c) Two different matings were made between black members of the F2 generation, with the following results.

Diagram each of crosses.